Phase modulating apparatus and phase modulating method

Details Phase modulating apparatus and phase modulating method Phase modulating apparatus and phase modulating method

2007-04-24

2007-04-24

Mack, Ricky (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C359S290000, C359S292000, C355S067000

Reexamination Certificate

active

10493464

ABSTRACT:
An adder unit (60e) reads a desired CGH pattern from a pattern memory unit (60a) and a phase distortion correction pattern from a distortion-correction pattern memory unit (60d) and adds both patterns together to generate a phase distortion corrected pattern. A control unit (60g) controls a phase modulation module (40) in accordance with the phase distortion corrected pattern. Accordingly, phase-modulated light based on the desired phase pattern can be generated precisely, easily and quickly.

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Itoh et al., “Reflect-Type, Highpower-Laser Pulse Shaping System its Operation Verified by Frequency Resolved Optical Gating,” Laer Research vol. 28, No. 8, pp. 511-515, 2000.

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